SwiftUI 错误 - 列表更改锁定 UI -(旧标题:SwiftUI CoreData 获取非常慢)

Using SwiftUI, here is my code:

struct SearchView: View {


    @Binding var searchTerm:String
    var titleBar:String

    var fetch: FetchRequest<MyData>
    var records: FetchedResults<MyData>{fetch.wrappedValue}

    init(searchTerm:Binding<String>, titleBar:String) {
        self._searchTerm = searchTerm
        self.titleBar = titleBar
        self.fetch = FetchRequest(entity: MyData.entity(), sortDescriptors: [NSSortDescriptor(keyPath:  MyData.header, ascending: true)], predicate: NSCompoundPredicate(type: .and, subpredicates: [ NSCompoundPredicate(type: .or, subpredicates: [NSPredicate(format: "%K CONTAINS[cd] %@", #keyPath(MyData.title),searchTerm.wrappedValue), NSPredicate(format: "%K CONTAINS[cd] %@", #keyPath(MyData.details),searchTerm.wrappedValue)]), NSPredicate(format: "%K == %@", #keyPath(MyData.titleBar),titleBar)])) //fetch request contains logic for module and search data - need to fix sort order later
    }

    var body: some View {


        List{

            Section(header: SearchBar(text: $searchTerm)) {

                ForEach(records, id: .self) { fetchedData in

                    VStack {
                        NavigationLink(destination: DetailView(titleBar: fetchedData.title!, statuteData: fetchedData.details!, isFavorite: fetchedData.isFavorite)) {

                            HStack {
                                Text(fetchedData.header!)
                                    .font(.subheadline)

                                VStack(alignment: .leading) {
                                    Text(fetchedData.title!)
                                }
                                .scaledToFit()

                                Spacer()

                                if fetchedData.isFavorite {
                                    Image(systemName: "star.fill")
                                        .imageScale(.small)
                                        .foregroundColor(.yellow)
                                }
                            }
                        }
                    }
                }
            }.navigationBarTitle(Text("Search"))
        }
    }
}

感谢您的帮助.

更新:

在编辑之前，我报告了存储数据的另一个问题，但是，该问题已通过以下帖子解决:

struct MyDataModel: Hashable {
  let title: String
  let name: String
  let myData: String
}

class MyData:ObservableObject {
  @Published var searchDataArray = [MyDataModel]()
}

let myData = MyData()

func arrayFiller(){ 

    if self.myData.searchDataArray.count > 0 {
        self.myData.searchDataArray.removeAll()
    }

    for item in self.fetchRequest {
        self.myData.searchDataArray.append(MyDataModel(title: item.title!, name: item.name!, myData: item:myData!))
    }
}

ForEach(self.myData.searchDataArray, id: .self) { fetchedItem in
    Text(fetchedItem.name)
}